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Malt Strategy
Lucie DebrabandereLD

Lucie Debrabandere

Full-Stack Developper | Back-end | Ruby on Rails

€225/day
Amsterdam, NL
3-7 years
Ruby on Rails
React.js
PostgreSQL
Javascript / JQuery
Microservices

Average response time: 1 hour

About Lucie

Hello, I'm Lucie 👋

I'm a French Ruby on Rails Full-Stack Engineer with 5 years of experience building high-volume, reliable, production-grade applications.
I help tech teams deliver faster and scale safely by designing and developing:
  • Robust back-end APIs
  • Micro-services or monolithic architectures
  • Building eCommerce OMS (shipping, order routing, fulfillment logic, workflows)
  • Complex features in Ruby 3, Rails 7, GraphQL, Sidekiq, PostgreSQL, RSpec
  • Intuitive front-end interfaces with HTML, CSS, Bootstrap, and some React
What clients appreciate about working with me:
  • Clean, maintainable and well-tested code
  • Strong ownership: I deliver from problem definition to production
  • Good communication (async-friendly, clear, structured)
  • Proactive mindset: I identify edge cases, propose improvements, and challenge requirements when needed
  • A real ownership mindset: from spec to production deployment
I'm looking for impactful projects, where I can help teams ship faster, improve architecture, or take on challenging features.

If that sounds like what you need, I'd be happy to chat!
E-commerce
IoT (Internet of Things)
Software Publishing
Environmental and Sustainable Development
Digital and IT Services

  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Amsterdam (up to 40km)

Experience

  • EXTIA
    SOFTWARE ENGINEER
    E-COMMERCE
    September 2024 - October 2025 (1 year and 1 month)
    Ruby on Rails Back-end Software Engineer — 4Murs (eCommerce)


    Designed and maintained scalable back-end APIs for 4Murs, focusing on the order management system using a micro-services architecture.
    • Implemented new features (such as gift card management or delivery system) while ensuring performance, reliability, and security
    • Improved delivery quality with CI/CD pipelines, automated testing and monitoring tools (Sentry, Kibana)
    • Wrote end-to-end tests with >90% coverage, ensuring reliability and long-term maintainability
    • Contributed to a robust and maintainable architecture supporting high-volume transactions
    • Collaborated in a fully remote team through peer coding, code reviews, and daily stand-ups

    Technologies: Ruby on Rails, Sidekiq, Git, Kibana, GraphQL, Sentry, CI/CD, daily
    Microservices GraphQL Sentry E-commerce Pair Programming
  • OCTOPUS LAB
    SOFTWARE ENGINEER
    ENVIRONMENTAL
    June 2021 - July 2024 (3 years and 1 month)
    Lille, France
    Full-Stack Engineer — Octopus Lab (SaaS Air Quality Monitoring)


    Contributed to a SaaS platform for real-time air quality monitoring and prediction, focusing on alerting, API integrations, and system customization.
    • Developed back-end services and front-end components (QR code generation, email notification systems, interactive dashboards) to enhance user engagement
    • Wrote end-to-end tests with >95% coverage, ensuring reliability and long-term maintainability
    • Participated in pair programming and conducted constructive code reviews to ensure clean, maintainable, and scalable code
    • Collaborated with a cross-functional team to deliver reliable, user-friendly features on time
    • Worked with full-stack technologies to implement solutions end-to-end

    Technologies: Ruby on Rails, ActiveRecord, Sidekiq, PostgreSQL, HTML, CSS, React, jQuery, Bootstrap, Git, CI/CD, Docker, OKR

    External API integration OKR Pair Programming Monolithique Responsive design
  • OCTOPUS LAB
    TRAINEE SE
    ENVIRONMENTAL
    June 2020 - June 2021 (1 year)
    Lille, France
    Full-Stack Engineer (Internship) — Octopus Lab

    Developed a public dashboard for users to monitor and analyze building air quality in real time, later monetized as part of the SaaS offering.
    • Learned and applied Ruby on Rails, collaborating with senior engineers on API design, front-end integration, and UI improvements
    • Participated in team OKRs to align development with business goals
    • Gained hands-on experience with best coding practices and GitLab version control
    • Contributed to a user-facing product that supported data-driven decision making for customers

    Technologies: Ruby on Rails, HTML, CSS, GitLab, OKR
    User Interface Design Teamwork Bootstrap External API integration Backend Service Development

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Education

  • Computer Science RNCP certification
    Training Center WEBFORCE 3
    2021
    Computer Science RNCP certification

Skill set

GraphQL
External API integration
Testing and Quality Assurance
Performance Optimization
Git
Gitlab CI/CD
HTML/CSS
Design Patterns
Backend Service Development
Front End Interface Development

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